John e



J. E. GAITLEY.

l MACHINE FOR GOILING WIRE.A No. 319,810. Patented June 9, 1885* umm' fr;

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N F PhnIo-Lihugnphur, Wanhlnginn. C.

citizen of the United States, residing at Troy,

'PATENT tries..

JOHN n. GAITLEY, or rrRoY, NEW YORK.v

MACHINE FORCOILING WIRE.

SPECIFICATION forming part of Letters Patent No. 319,810, dated June 9, 1885.

Application iilcd September 29, 1884. (No model.)

To @ZZ whom t may concern: l

Be it known that I, JOHN E. GAITLEY, a

New York, have invented new and useful Improvements in Machines for Coiling irc, of which the following is a specification.

This invention relates to machines for coiling wire to form spiral springs having either uniform diameter throughout or decreasing in diameter from the middle portion toward both ends, it being more particularly intended for the manufacture of springs used in knobs for stoves of that kind for which Letters Patent No. 304,925 were issued to me upon the 9th-day of September, 1884.

The invention consists in the several novel features of construction and combinations of parts hereinafter fully described, and definitely set forth in the claims.

Referring to the drawings, Figure 1 isa perspective view of a machine embodying my invention. Fig. 2 is an end elevation of Fig. 1.

In the said drawings, the reference-numeral 1 denotes the machine-frame,in which the operative parts are supported. Upon this frame are mounted head-stocks 2, in which is journaied a main shaft, 3, carrying'a pulley, 4. In the head-stocks 2, and below the main shaft 3, is journaled ashaft, 5,driven by a gear, 6, upon the main shaft, carryingafeed-roll, 7, uponits end, which is so arranged as to have operative engagement witha corresponding roll, 8, upon the shaft 5. These feed-rolls are grooved upon their peripheries to carry wire of any suitable caliber.

Intermediate of and a little to one side of the shafts 3 and 5is journaled a shaft, 9, having upon its end a grooved carrier-roll, 10, arranged in substantially the same vertical plane with the feed-rolls 7 and 8 and receiving rotation from a pinion, 11, upon the main shaft 3, gearing with a small pinion, 12, upon the shaft 9.

Within the frame 1 is mounted a transverse shaft, 13, carrying aloop, 14, within which is placed a post, 15. Upon the upper part of the latter is pivotally mounted an arm, 16, within which is journaled a wheel, 17, having its periphery grooved and rotating in the same vertical plane with the feed-rolls 7 and 8 and the carrier-roll 10.

The wheel 17 may be either round or elliptical. In the former case the grooved periphery is at all times within a fixed distance from t-he perimeter of the grooved carryingroll v10, and this distance' may be Varied by the longitudinal adjustment of the shaft 13, by which the arm 16, carrying said Wheel, is

supported, said shaft being fixed at any given ing-wheel 17, which revolves as the wire presses against it, the axis of said wheel being either above or below the contact-point of 7oA said wire as it is delivered from the carrierroll 10. The result of this movement is to curl the wire, and as the coiling-wheel17 continues to revolve the wire runs off the carrierroll 1() in aspiral. If, now, the coiling-wheel be of the same diameter at all points, the resulting coil will be a continuous spiral of uniform diameter throughout; but, if said wheel is of substantially elliptical form, the coil will be composed of successive sections, each having a greatercentral diameter and diminishing toward each end,since the coiling-wheel, when made of elliptical form, will alternately approach and recede from the carrier-roll 10.

By adjusting the ceiling-wheel relatively to the .carrier-roll 10, the diameter of the resulting coil may be made greater or less proportionately to the distance between said parts.

The ceiling-wheel 17 is so adjusted that its grooved periphery lies in an inclined plane, whereby the pitch of the wire-coil as it runs off said wheel is determined. This adjustment may be varied by means of the shaft 13, which carries the post 15, upon which the coiling-wheel is mounted, and the spiral coil produced will be of greater or less pitch proportionately to said adjustment.

yI propose to use more than one pair of rolls, 7 and 8, as I obtain thereby a greater propelling force. to any specified number of such rolls, as a greater or less number may be used, according to circumstances.

A set-screw is tapped through the loop 14,

I do not, therefore, limit myself Ico to permit the adjustment of the post 15 either vertically or axially.

A loose pulley, 4a, is mounted beside the pulley 4, to receive the belt when the machine is stopped.

What I claim is- 1. In a machine for ceiling wire, the combination, with the positively-revolving-feedrolls 7 and 8, carrier-roll 10, and supportingframe, of the horizontally-adjustable shaft 13, having an end socket or loop, 14, the vertically and axially adjustable stem 15, tted in said loop, the arm 16 on the upper end of the stem 15, and the Wire-coiling wheel 17, fitted loosely on the arm 16, substantially as described.

2. In a machine for coiling wire, the combination of the horizontally-adj ustable arm 13, the vertically-adjustable stem 15, fitted therein, the inclined arm or axis 16, extending from the upper end of the stem 15, and the grooved coiling-wheel 17, fitted loosely on the axis 16, with the supporting-frame and positivelyoperating rolls for feeding the wire to the coiling-wheel, substantially as described.

3. In a machine for coiling Wire, the combination, with feed-rolls advancing the wire, of a coiling wheel having elliptical form against which the wire is pushed by the feedrolls, substantially as described.

4. In a machine for coiling wire, vthe combination, with feed-rolls advancing the wire and a coiling-wheel having elliptical form, against which the wire is pushed by the feedrolls, of an intermediate carrier-roll supporting said wire, substantially as described.

In testimony whereof I aiiix my si gnature in presence of two witnesses.

JOHN E. GAITLEY.

Witnesses:

HUGH GALBRAITH, GEO. D. COOPER. 

